Hernandez and his girlfriend, Lorena Mendoza, and her daughter were spending the Labor Day weekend at the Hilton Westchase, where they planned to gather with other relatives, according to the lawsuit. Duran brought Hernandez's 10-year-old brother to the hotel to swim at the pool.

As the children were finishing their swim, the 10-year-old boy suddenly cried out and his body convulsed as he began to float helplessly near the light in the pool's deep end, the suit states.

Duran reached for him and was jolted by the electrical current and also began to convulse, the suit states.

She spent about four days in the hospital, and her younger son was in a pediatric intensive care unit for almost a week. Mendoza and her daughter were also admitted to a hospital, the suit states.

According to the plaintiffs' petition, the pool at the Hilton Westchase had not met electrical codes for years.

For example, the suit states, there was no "ground fault circuit interrupter" on pool lights to cut off power quickly enough to prevent injury.

Brown Electric, also named as a defendant, installed new electrical equipment and wiring at the pool without getting proper permits from the city, the suit alleges.

A post-accident inspection by the city resulted in a citation for "use of (an) electrical system which constitutes a hazard to safety, health and public welfare," the suit states.

Plaintiffs also allege that faulty wiring resulted in live electricity being sent directly to the pool light's housing.

In response to a request for comment, Hilton Worldwide issued a statement Wednesday through a public relations agency:

"Our sympathies and thoughts are with the Hernandez family. The safety of guests, visitors and staff are our top priority and we are taking this incident seriously. We believe this was an isolated event, but we are cooperating fully with investigators to determine exactly what happened and to completely address any concerns. We will comment further once the investigation is complete."